ARL Statistics 2006-2007
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22 · ARL Statistics 2006–2007 aRL sTaTisTics inTeRacTive ediTion The ARL Statistics are available through an interactive edition on the Web, supplementing previously available data from 1992–1993. Maintained and supported by the Geospatial and Statistical Data Center at the University of Virginia, this site offers researchers access to ARL Statistics with documentation.4 The site offers maps and graphics depicting current library trends. For the particularly adventurous, the site links to an interactive graphics and statistics page, allowing users to manipulate their data queries. One may chose univariate, bivariate, or multivariate statistics in addition to a vast array of selections with which to customize a query. The interactive pages also include options for regional aggregates, customized samples of observations, simple rank order tabulations of data, and the ability to create ratios of any two variables. These and other capabilities are located at http://fisher.lib.virginia.edu/arl/. The ARL Statistics datafiles since 1908 can be retrieved in spreadsheet format from http://www.arl.org/stats/ annualsurveys/arlstats/mrstat.shtml. The ARL Statistics and Measurement Program Web site is located at http://www.arl.org/stats/. 4 For more information on the ARL Statistics Interactive Edition, see Martha Kyrillidou, “To Describe and Measure the Performance of North American Research Libraries,” IFLA Journal 27 (2001): 257–63.